<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
  <meta charset="UTF-8">
  <title>登录页</title>
</head>
<body>
    <form action="/doLogin" method="post">
      <input type="hidden" name="url" th:value="${url}">
      <input type="hidden" name="user" th:value="${username}">
        用户名：<input name="username" value="fire"><br/>
        密码：<input name="password" type="password" value="fire">
      <input type="submit" value="登录">
    </form>
</body>
</html>